How big of a job is it to change leaf springs??

i would also recommend getting new front spring hangers in addition to the rear shackles. often they get pretty funky and worn out. check and make sure your bolts for the front hangers come out with out breaking before you order. do this because you will need to re-use these with the new front hangers. there are (4) nuts and studs for each side front hanger that you will need to reuse or buy new ones.